Adding two 8 GB cache updates to an operational system
You can install a pair of 8 GB cache update options while the system is operational.
About this task
Notes:
- When a canister is missing, operate the enclosure for as little time as possible. When a canister is missing, the airflow in the enclosure is disrupted. As a result, the system can overheat if it is left that way for too long.
- Memory modules are susceptible to electrostatic discharges.
Procedure
Complete the following steps to install a pair of options while the system continues to perform I/O operations.
- In the management GUI, check the Recommended Action event log view. Resolve any issues before you continue the procedure. To safely remove a node canister without disrupting I/O, refer to Procedure: Removing a node canister.
- Remove the lid from the canister. For instructions, refer to Procedure: Removing and replacing lid of a node canister.
- Insert the memory module into memory slot 2, which is located between the
existing memory module and the battery (Figure 1). Figure 1. Installing the cache memory update
- Open the retaining clip on each end of the DIMM connector. Attention: To avoid breaking the retaining clips or damaging the DIMM connectors, open and close the clips gently.
- Touch the static-protective package that contains the DIMM to any unpainted metal surface on the outside of the canister.
- Remove the DIMM from the package.
- Turn the DIMM so that the DIMM keys align correctly with the connector.
- Insert the DIMM into the connector by aligning the edges of the DIMM with the slots at the ends of the DIMM connector. DIMMs do not stand up; rather, they lie in a cascading fashion .
- Firmly press the DIMM straight down into the connector
by applying pressure on both ends of the DIMM simultaneously. The retaining clips snap into the locked position when the DIMM is firmly seated in the
connector.Note: If there is a gap between the DIMM and the retaining clips, the DIMM is not inserted correctly. Open the retaining clips, remove the DIMM, and reinsert it.
- Reinstall the lid on the canister. For instructions, refer to Procedure: Removing and replacing lid of a node canister.
- Reinstall the canister in the enclosure and replace cables that were removed. Do not attempt to restart any host systems until instructed to do so. The canister restarts. Because the hardware configuration changes, a node error (841) and associated alert (1199) are recorded in the system event log.
- Use the Recommended Action in the management GUI monitoring page to check and accept the hardware changes. The node canister restarts as part of this process. When the system restarts, an alert 1470 indicates that the node canister hardware does not match. You can ignore this alert.
- Repeat steps 2 to 11 for the second canister. Verify that host systems have rediscovered the first canister so they can fail over it when the second canister is removed.
- Use the Recommended Action in the management GUI monitoring page to check and accept the hardware changes reported in the 1199 error. The node canister restarts. The mismatched hardware error 1470 is automatically cleared.
- Restart any host applications that you stopped earlier. After the mismatched hardware error 1470 has automatically cleared, both nodes are successfully running with 8G RAM. The event log now reports a 2050 event (System update completion required). This event indicates that the software needs to run in 64-bit mode, now that 8G RAM is available.
- Use the Recommended Action in the management GUI monitoring page to complete the system update procedure.
- Check for any new alerts in the event log. Resolve them using the information in Recommended Action.
Parent topic: Adding cache memory to a system
Related concepts: